{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1035-1AL20-ZW95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1035-1AL20-ZW95","canonicalUrl":"https://aoctrl.com/siemens/3RT1035-1AL20-ZW95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1035-1AL20-ZW95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S2 power contactor, 3RT1035-1AL20-ZW95, 22 kW at 500 V AC-3, screw-type terminals, DIN rail snap-on, active production.","salesMarkdown":"## SIRIUS S2 power contactor — fit and ratings The Siemens 3RT1035-1AL20-ZW95 is a SIRIUS S2-frame power contactor rated for 22 kW at 500 V in AC-3 duty — the motor-switching category that governs most induction-motor starts and stops in industrial panels. The S2 frame size (55 mm wide, 112 mm tall, 115 mm deep) fits the standard 35 mm DIN rail per EN 50022, with screw-and-snap-on mounting. Screw-type terminals on the main current circuit accept solid conductors from 0.5 to 4 mm² (two per clamp) and stranded up to 25 mm², covering typical motor feeder sizes up to 22 kW. The 22 kW at 500 V AC-3 rating is the headline selection figure; at 400 V AC-2 the contactor is rated 18.5 kW. ## Integration notes Side-by-side mounting is permitted, so multiple contactors can be ganged without spacing gaps — useful for compact motor control centers. Conductor termination: solid wires 2x (0.5...1.5 mm²) or 2x (0.75...2.5 mm²) per clamp, max 2x (0.75...4 mm²); stranded 2x (0.75...25 mm²). The wide stranded range accommodates both control wiring (1.5 mm²) and motor power cables (up to 25 mm²) without needing adapter lugs.","metaTitle":"Siemens 3RT1035-1AL20-ZW95 SIRIUS Power Contactor, S2, 22 kW","metaDescription":"Siemens 3RT1035-1AL20-ZW95 SIRIUS power contactor, S2 frame, 22 kW at 500 V AC-3. Active production, screw terminals, DIN rail mount. Sourced to order; confirm pricing and availabi","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"115 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"55 mm","at AC":"7 ... 20 ms","Height":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP20","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"1 200 1/h","at AC-2 maximum":"600 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"300 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Size Of Contactor":"S2","Solid Or Stranded":"2x (0.75 ... 16 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"230 V","at 500 V rated value":"22 kW","at 60 Hz rated value":"230 V","at 690 V rated value":"11.4 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"18.5 kW","at AC-4 at 400 V rated value":"35 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"16 mm²","at 60 °C minimum permissible":"16 mm²","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"22 kW","at 690 V at 60 °C rated value":"66 kW","at AWG cables for main contacts":"2x (18 ... 2)","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 63 A","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 125 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Thermal Short-Time Current Limited To 10 S":"400 A","Finely Stranded Without Core End Processing":"2x (0.75 ... 16 mm²)","apparent holding power of magnet coil at AC":"15 VA","apparent pick-up power of magnet coil at AC":"170 VA","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.76","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.35","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=512286&mlfb=3RT1035-1AL20-ZW95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1035-1AL20-ZW95/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3RT1035-1AL20-ZW95?","answer":"The contactor is rated 22 kW at 500 V AC-3 for motor switching, 18.5 kW at 400 V AC-2. It accepts solid conductors 0.5–4 mm² and stranded up to 25 mm². Operating temperature range is -25 to +60 °C."},{"question":"How does 3RT1035-1AL20-ZW95 compare to 3RT5036-1AP00?","answer":"Both are SIRIUS S2-frame power contactors with similar AC-3 motor ratings. The key difference is termination: 3RT1035-1AL20-ZW95 uses screw-type terminals; 3RT5036-1AP00 uses spring-cage terminals. If your panel is wired for screw terminals, the 3RT1035-1AL20-ZW95 is the drop-in match without rewiring."},{"question":"Where can I buy 3RT1035-1AL20-ZW95?","answer":"This part is sourced to order through independent distribution. Availability and current pricing are confirmed at the time of quote against an RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1035-1AL20-ZW95","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RT1035-1AL20-ZW95 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}